Model MIC-P3 Transmission Polarizing microscope is one of the most professional instruments, in common use, for Geological, Mineral, Metallurgical departments and relative Academy. Recent years, with the development of optical technology, the Polarizing microscope is in widely use. Transmission Polarizing microscope is a very suitable product. The user can make single polarizing view, orthogonal polarizing view, cone light view and micro-photograph. The microscope is equipped with attachment, such as gypsum(1 λ),mica(1/4 λ ) test piece, quartz wedge and attachable mechanical stage. It is a novel microscope with maturity function and nicer quality